Convertible pickax.



ient-ly operated, the same being engaged at PHILIP BALI, 0F PORTAGE,PENNSYLVANIA..

CONVERTIBLE PICKAX.

Application filed March 9, 1918. Serial No. 221,402.

To all whom it may concern:

Be it known that I, PHILIP BALI, a sub ect of the King of Hungary,resident of Portage, county of Cambria, and State of Pennadapted forimpact or concussion are inter changeably held within the head of th1mplement.

A further object is to provide an implea ment in which the connectingelements may be readily interchanged, the same being held in a id g dmanner when wit l the head" A still further object is to provide a toolof simple construction having interchangeable elements in which nopeculiar or ob-- jectionable appearance is presented.

These and other like objects are attained by the novel construction andcombination of parts hereinafter described and shown in the accompanyingdrawing, formlng a material part of this disclosure, and in which-Figure 1 is an end elevational view show ing an implement made in,accordance with the invention.

Fig. 2 is a side elevational view of the same.

Fig. 3 is a perspective view showing one form of the interchangeablehead." Fig. 4 is another view of interchangeable head.

Fig. 5 is a transverse sectional view taken' on line 5-5 of Fig. 2, and

Fig. 6 is a similar transverse sectional view taken on line 6-6 of Fig.1.'

Like other tools of this type the implementcomprises a handle 10,usually made of wood and of such length as to be convenits end in theeye 11, of the head 12; one of the ends 1 1, being plain and used forany purpose for which it may be adapted. The other end 15, has formedupon opposite sides recesses 16, in which are engaged opposed pawls 17,by means of pins 18, the flat level outer surfaces of which are heldextended.

flush or level with the heads 12, by means of coiled compression springs20.

The recesses 16 are undercut in thelr ends ing ends of-the pawls aresimilarly formed so as to prevent the springs 20 from ressin them beyondthe level surface of t e hea The opposite ends ofthepawls are formedSpecification of Letters Patent. Patented-Sept. 17,1918, v

next to the handle 10, while the correspondwith detent hooks 21, whichextend into a longitudinal recess 22, formed in the lower f portion ofthe head 15, the same being open I v I side walls beveled or dovetailedoutwardly atits bottom and outer end and having itsasisbestseeninFig.5-.

The operative elements of. the implement consist ofa shank 24:, formedatone extremityjwith points corresponding to those of a plckax- 2,5,,hammer head, 26, or blade, 27,

similar to an ax or hatchet, while extending inan opposite directionfrom the shank 2 1, is a stem'28 having beveled sides adapt-- ed to beinserted within the recess 22, to which they are accurately fitted.

Formed withthe shank 24, is an overhanging ledge 29, suited to acorresponding transverse recess provided in the extreme front end of thehead 15, above the longitudinal recess 22. A corresponding ledge 31, is

formed at the extremity of the stem 28, en-

gageable with a like recess provided in the head and formed in oppositsides of the r stem 28, are slots 32, receptive of the detent hooks 21of the pawls. I

The operation of changingfrom one point to another is as follows.Pressure being applied to. the outer ends of'the awls 17 upon each side,so as to overcome the pressure of the springs 20, the detent hooks 21,are raised outward from the slots 32, and a pull exerted on the stem 24,causes a separation of the parts so that the points can be renewed or apoint of a different shape inserted, the insertion being accomplished bymerely press-- ing the stem 28, into the recess 22, until the detents21, engage with the slots 32, holding the oints in a rigid operativeposition.

aving thus described my invention What Iclaim as new and desire tosecure by Letters Patent is In a tool of the character described,havundercut recesses formed upon opposite sides of the head, hookeddetents engaged in said recesses h. ving flat, level outer faces restingagainst the walls of said recesses and,

undereut ends engaging the undercut 'recesses, colled springs engagingthe opposite inner faces of said detents at their ends distant from thehooks for keeping these ends 5 apart and tending to close the hooks, apointhaving a shanked stem suited to said slot,

recesses in said stem in which the hooked ends of said detents may beengaged, and

ledges formed at the endsof said stem and shank, said ledges beingreceivable within 16 corresponding recesses formed in said head,substantially as described and for the purpose set forth.

In testimony whereof l have aflixed mysignature. r a PHILIP BALI.

